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Finding the Fourth Proportional to 545,325.67, 752,354.61 and 315,757.63

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Solution

The fourth proportional to 545,325.67, 752,354.61 and 315,757.63 is: 435,632.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,325.67 : 752,354.61 = 315,757.63 : x
  2. Step 2: Convert to fraction form
    545,325.67/752,354.61 = 315,757.63/x
  3. Step 3: Cross multiply
    545,325.67x = 752,354.61 × 315,757.63
  4. Step 4: Simplify right side
    545,325.67x = 237,561,708,573.17
  5. Step 5: Solve for x
    x = 237,561,708,573.17/545,325.67
  6. Step 6: Final answer
    x = 435,632.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.